/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", Georgia, serif;
  color: #1a1a1a;
  background: #fdfaf5;
  line-height: 1.8;
}

/* ===== TOKENS ===== */
:root {
  --red:    #c0392b;
  --gold:   #b8860b;
  --gold-lt:#f0d080;
  --ink:    #1a1a1a;
  --cream:  #fdfaf5;
  --warm:   #f5efe3;
  --border: #d4c5a9;
}

/* ===== HEADER ===== */
header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(26,26,26,0.96);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%; height: 64px;
  border-bottom: 2px solid var(--gold);
}
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-mark {
  width: 40px; height: 40px; background: var(--red); border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff; font-weight: 900; letter-spacing: -1px;
  position: relative; overflow: hidden;
}
.logo-mark::after {
  content: ""; position: absolute; inset: 3px;
  border: 1px solid rgba(255,255,255,0.3); border-radius: 2px;
}
.logo-text { color: #fff; font-size: 14px; line-height: 1.3; }
.logo-text strong { display: block; font-size: 16px; color: var(--gold-lt); letter-spacing: 2px; }
nav { display: flex; gap: 24px; align-items: center; }
nav a {
  color: #ccc; text-decoration: none; font-size: 13px;
  letter-spacing: 1px; transition: color .2s;
  font-family: "Noto Sans JP", sans-serif;
}
nav a:hover, nav a.active { color: var(--gold-lt); }
.nav-cta {
  background: var(--red); color: #fff !important;
  padding: 6px 16px; border-radius: 2px;
}
.nav-cta:hover { background: #a93226; }

/* ===== PAGE HERO (sub-pages) ===== */
.page-hero {
  padding-top: 64px;
  height: 280px;
  background: #0e0e0e;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
}
.page-hero-bg {
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 40px, rgba(192,57,43,0.04) 40px, rgba(192,57,43,0.04) 80px),
    repeating-linear-gradient(-45deg, transparent, transparent 40px, rgba(184,134,11,0.04) 40px, rgba(184,134,11,0.04) 80px);
}
.page-hero-bg::before {
  content: attr(data-kanji);
  position: absolute; right: 5%; bottom: -40px;
  font-size: 240px; font-weight: 900;
  color: rgba(255,255,255,0.03);
  line-height: 1; pointer-events: none;
}
.page-hero-content {
  position: relative; z-index: 2; padding: 0 5%;
}
.breadcrumb {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 11px; letter-spacing: 3px; color: #555;
  margin-bottom: 12px;
}
.breadcrumb a { color: var(--gold); text-decoration: none; }
.breadcrumb a:hover { color: var(--gold-lt); }
.page-label {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 11px; letter-spacing: 4px; color: var(--gold); margin-bottom: 8px;
}
.page-title {
  font-size: clamp(28px, 5vw, 52px);
  color: #fff; font-weight: 900; letter-spacing: 5px;
}

/* ===== SECTIONS ===== */
section { padding: 80px 5%; }
.section-inner { max-width: 1100px; margin: 0 auto; }

.section-label {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 11px; letter-spacing: 4px; color: var(--gold); margin-bottom: 8px;
}
.section-title {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 900; letter-spacing: 4px; line-height: 1.3; margin-bottom: 14px;
}
.title-underline {
  width: 50px; height: 3px;
  background: linear-gradient(90deg, var(--red), var(--gold));
  margin-bottom: 40px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 13px 32px; border-radius: 2px;
  font-size: 13px; letter-spacing: 2px;
  text-decoration: none;
  font-family: "Noto Sans JP", sans-serif;
  transition: all .25s; cursor: pointer;
}
.btn-primary { background: var(--red); color: #fff; border: 2px solid var(--red); }
.btn-primary:hover { background: #a93226; border-color: #a93226; }
.btn-outline { background: transparent; color: var(--gold-lt); border: 2px solid var(--gold); }
.btn-outline:hover { background: var(--gold); color: #000; }
.btn-dark { background: transparent; color: #ccc; border: 2px solid #333; }
.btn-dark:hover { border-color: var(--gold); color: var(--gold-lt); }

/* ===== CARDS ===== */
.biz-card {
  background: #fff; border-radius: 2px;
  border: 1px solid var(--border);
  padding: 36px 32px;
  transition: box-shadow .2s, transform .2s;
  position: relative; overflow: hidden;
}
.biz-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--red), var(--gold));
}
.biz-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,.1); transform: translateY(-3px); }
.biz-icon { font-size: 36px; margin-bottom: 16px; }
.biz-card h3 { font-size: 18px; font-weight: 900; letter-spacing: 2px; margin-bottom: 12px; }
.biz-card p { font-family: "Noto Sans JP", sans-serif; font-size: 14px; color: #555; }

/* ===== FOOTER ===== */
footer {
  background: #070707;
  border-top: 1px solid #222;
  padding: 40px 5%;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 20px;
}
.footer-logo { color: var(--gold-lt); font-size: 15px; letter-spacing: 3px; font-weight: 700; }
.footer-copy { font-family: "Noto Sans JP", sans-serif; font-size: 12px; color: #444; letter-spacing: 1px; }
.footer-nav { display: flex; gap: 20px; }
.footer-nav a {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 12px; color: #555; text-decoration: none; letter-spacing: 1px;
  transition: color .2s;
}
.footer-nav a:hover { color: var(--gold-lt); }

/* ===== PLATFORM TAGS ===== */
.platform-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff5f5; border: 1px solid #f5c6c0;
  color: var(--red); font-size: 13px; font-weight: 700;
  padding: 6px 16px; border-radius: 2px;
  font-family: "Noto Sans JP", sans-serif; letter-spacing: 1px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  header { padding: 0 4%; }
  nav { gap: 12px; }
  nav a { font-size: 12px; }
  .page-hero { height: 220px; }
  footer { flex-direction: column; align-items: flex-start; }
}